/src/boringssl/crypto/evp/evp.cc

Source (jump to first uncovered line)
// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <openssl/evp.h>

#include <assert.h>
#include <string.h>

#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/nid.h>

#include "../internal.h"
#include "internal.h"


// Node depends on |EVP_R_NOT_XOF_OR_INVALID_LENGTH|.
//
// TODO(davidben): Fix Node to not touch the error queue itself and remove this.
OPENSSL_DECLARE_ERROR_REASON(EVP, NOT_XOF_OR_INVALID_LENGTH)

// The HPKE module uses the EVP error namespace, but it lives in another
// directory.
OPENSSL_DECLARE_ERROR_REASON(EVP, EMPTY_PSK)

EVP_PKEY *EVP_PKEY_new(void) {
  EVP_PKEY *ret =
      reinterpret_cast<EVP_PKEY *>(OPENSSL_zalloc(sizeof(EVP_PKEY)));
  if (ret == NULL) {
    return NULL;
  }

  ret->type = EVP_PKEY_NONE;
  ret->references = 1;
  return ret;
}

static void free_it(EVP_PKEY *pkey) {
  if (pkey->ameth && pkey->ameth->pkey_free) {
    pkey->ameth->pkey_free(pkey);
    pkey->pkey = NULL;
    pkey->type = EVP_PKEY_NONE;
  }
}

void EVP_PKEY_free(EVP_PKEY *pkey) {
  if (pkey == NULL) {
    return;
  }

  if (!CRYPTO_refcount_dec_and_test_zero(&pkey->references)) {
    return;
  }

  free_it(pkey);
  OPENSSL_free(pkey);
}

int EVP_PKEY_up_ref(EVP_PKEY *pkey) {
  CRYPTO_refcount_inc(&pkey->references);
  return 1;
}

int EVP_PKEY_is_opaque(const EVP_PKEY *pkey) {
  if (pkey->ameth && pkey->ameth->pkey_opaque) {
    return pkey->ameth->pkey_opaque(pkey);
  }
  return 0;
}

int EVP_PKEY_cmp(const EVP_PKEY *a, const EVP_PKEY *b) {
  if (a->type != b->type) {
    return -1;
  }

  if (a->ameth) {
    int ret;
    // Compare parameters if the algorithm has them
    if (a->ameth->param_cmp) {
      ret = a->ameth->param_cmp(a, b);
      if (ret <= 0) {
        return ret;
      }
    }

    if (a->ameth->pub_cmp) {
      return a->ameth->pub_cmp(a, b);
    }
  }

  return -2;
}

int EVP_PKEY_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from) {
  if (to->type == EVP_PKEY_NONE) {
    evp_pkey_set_method(to, from->ameth);
  } else if (to->type != from->type) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_DIFFERENT_KEY_TYPES);
    return 0;
  }

  if (EVP_PKEY_missing_parameters(from)) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_MISSING_PARAMETERS);
    return 0;
  }

  // Once set, parameters may not change.
  if (!EVP_PKEY_missing_parameters(to)) {
    if (EVP_PKEY_cmp_parameters(to, from) == 1) {
      return 1;
    }
    OPENSSL_PUT_ERROR(EVP, EVP_R_DIFFERENT_PARAMETERS);
    return 0;
  }

  if (from->ameth && from->ameth->param_copy) {
    return from->ameth->param_copy(to, from);
  }

  // TODO(https://crbug.com/boringssl/536): If the algorithm takes no
  // parameters, copying them should vacuously succeed.
  return 0;
}

int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) {
  if (pkey->ameth && pkey->ameth->param_missing) {
    return pkey->ameth->param_missing(pkey);
  }
  return 0;
}

int EVP_PKEY_size(const EVP_PKEY *pkey) {
  if (pkey && pkey->ameth && pkey->ameth->pkey_size) {
    return pkey->ameth->pkey_size(pkey);
  }
  return 0;
}

int EVP_PKEY_bits(const EVP_PKEY *pkey) {
  if (pkey && pkey->ameth && pkey->ameth->pkey_bits) {
    return pkey->ameth->pkey_bits(pkey);
  }
  return 0;
}

int EVP_PKEY_id(const EVP_PKEY *pkey) { return pkey->type; }

// evp_pkey_asn1_find returns the ASN.1 method table for the given |nid|, which
// should be one of the |EVP_PKEY_*| values. It returns NULL if |nid| is
// unknown.
static const EVP_PKEY_ASN1_METHOD *evp_pkey_asn1_find(int nid) {
  switch (nid) {
    case EVP_PKEY_RSA:
      return &rsa_asn1_meth;
    case EVP_PKEY_EC:
      return &ec_asn1_meth;
    case EVP_PKEY_DSA:
      return &dsa_asn1_meth;
    case EVP_PKEY_ED25519:
      return &ed25519_asn1_meth;
    case EVP_PKEY_X25519:
      return &x25519_asn1_meth;
    default:
      return NULL;
  }
}

void evp_pkey_set_method(EVP_PKEY *pkey, const EVP_PKEY_ASN1_METHOD *method) {
  free_it(pkey);
  pkey->ameth = method;
  pkey->type = pkey->ameth->pkey_id;
}

int EVP_PKEY_type(int nid) {
  // In OpenSSL, this was used to map between type aliases. BoringSSL supports
  // no type aliases, so this function is just the identity.
  return nid;
}

int EVP_PKEY_assign(EVP_PKEY *pkey, int type, void *key) {
  // This function can only be used to assign RSA, DSA, EC, and DH keys. Other
  // key types have internal representations which are not exposed through the
  // public API.
  switch (type) {
    case EVP_PKEY_RSA:
      return EVP_PKEY_assign_RSA(pkey, reinterpret_cast<RSA *>(key));
    case EVP_PKEY_DSA:
      return EVP_PKEY_assign_DSA(pkey, reinterpret_cast<DSA *>(key));
    case EVP_PKEY_EC:
      return EVP_PKEY_assign_EC_KEY(pkey, reinterpret_cast<EC_KEY *>(key));
    case EVP_PKEY_DH:
      return EVP_PKEY_assign_DH(pkey, reinterpret_cast<DH *>(key));
  }

  OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_ALGORITHM);
  ERR_add_error_dataf("algorithm %d", type);
  return 0;
}

int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) {
  if (pkey && pkey->pkey) {
    // This isn't strictly necessary, but historically |EVP_PKEY_set_type| would
    // clear |pkey| even if |evp_pkey_asn1_find| failed, so we preserve that
    // behavior.
    free_it(pkey);
  }

  const EVP_PKEY_ASN1_METHOD *ameth = evp_pkey_asn1_find(type);
  if (ameth == NULL) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_ALGORITHM);
    ERR_add_error_dataf("algorithm %d", type);
    return 0;
  }

  if (pkey) {
    evp_pkey_set_method(pkey, ameth);
  }

  return 1;
}

EVP_PKEY *EVP_PKEY_new_raw_private_key(int type, ENGINE *unused,
                                       const uint8_t *in, size_t len) {
  // To avoid pulling in all key types, look for specifically the key types that
  // support |set_priv_raw|.
  const EVP_PKEY_ASN1_METHOD *method;
  switch (type) {
    case EVP_PKEY_X25519:
      method = &x25519_asn1_meth;
      break;
    case EVP_PKEY_ED25519:
      method = &ed25519_asn1_meth;
      break;
    default:
      OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_ALGORITHM);
      return nullptr;
  }

  bssl::UniquePtr<EVP_PKEY> ret(EVP_PKEY_new());
  if (ret == nullptr) {
    return nullptr;
  }
  evp_pkey_set_method(ret.get(), method);

  if (!ret->ameth->set_priv_raw(ret.get(), in, len)) {
    return nullptr;
  }

  return ret.release();
}

EVP_PKEY *EVP_PKEY_new_raw_public_key(int type, ENGINE *unused,
                                      const uint8_t *in, size_t len) {
  // To avoid pulling in all key types, look for specifically the key types that
  // support |set_pub_raw|.
  const EVP_PKEY_ASN1_METHOD *method;
  switch (type) {
    case EVP_PKEY_X25519:
      method = &x25519_asn1_meth;
      break;
    case EVP_PKEY_ED25519:
      method = &ed25519_asn1_meth;
      break;
    default:
      OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_ALGORITHM);
      return nullptr;
  }

  bssl::UniquePtr<EVP_PKEY> ret(EVP_PKEY_new());
  if (ret == nullptr) {
    return nullptr;
  }
  evp_pkey_set_method(ret.get(), method);

  if (!ret->ameth->set_pub_raw(ret.get(), in, len)) {
    return nullptr;
  }

  return ret.release();
}

int EVP_PKEY_get_raw_private_key(const EVP_PKEY *pkey, uint8_t *out,
                                 size_t *out_len) {
  if (pkey->ameth->get_priv_raw == NULL) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
    return 0;
  }

  return pkey->ameth->get_priv_raw(pkey, out, out_len);
}

int EVP_PKEY_get_raw_public_key(const EVP_PKEY *pkey, uint8_t *out,
                                size_t *out_len) {
  if (pkey->ameth->get_pub_raw == NULL) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
    return 0;
  }

  return pkey->ameth->get_pub_raw(pkey, out, out_len);
}

int EVP_PKEY_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b) {
  if (a->type != b->type) {
    return -1;
  }
  if (a->ameth && a->ameth->param_cmp) {
    return a->ameth->param_cmp(a, b);
  }
  // TODO(https://crbug.com/boringssl/536): If the algorithm doesn't use
  // parameters, they should compare as vacuously equal.
  return -2;
}

int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD *md) {
  return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, 0,
                           (void *)md);
}

int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX *ctx, const EVP_MD **out_md) {
  return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_GET_MD,
                           0, (void *)out_md);
}

void *EVP_PKEY_get0(const EVP_PKEY *pkey) {
  // Node references, but never calls this function, so for now we return NULL.
  // If other projects require complete support, call |EVP_PKEY_get0_RSA|, etc.,
  // rather than reading |pkey->pkey| directly. This avoids problems if our
  // internal representation does not match the type the caller expects from
  // OpenSSL.
  return NULL;
}

void OpenSSL_add_all_algorithms(void) {}

void OPENSSL_add_all_algorithms_conf(void) {}

void OpenSSL_add_all_ciphers(void) {}

void OpenSSL_add_all_digests(void) {}

void EVP_cleanup(void) {}

int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY *pkey, const uint8_t *in,
                                   size_t len) {
  if (pkey->ameth->set1_tls_encodedpoint == NULL) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
    return 0;
  }

  return pkey->ameth->set1_tls_encodedpoint(pkey, in, len);
}

size_t EVP_PKEY_get1_tls_encodedpoint(const EVP_PKEY *pkey, uint8_t **out_ptr) {
  if (pkey->ameth->get1_tls_encodedpoint == NULL) {
    OPENSSL_PUT_ERROR(EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
    return 0;
  }

  return pkey->ameth->get1_tls_encodedpoint(pkey, out_ptr);
}

int EVP_PKEY_base_id(const EVP_PKEY *pkey) {
  // OpenSSL has two notions of key type because it supports multiple OIDs for
  // the same algorithm: NID_rsa vs NID_rsaEncryption and five distinct spelling
  // of DSA. We do not support these, so the base ID is simply the ID.
  return EVP_PKEY_id(pkey);
}

Coverage Report

Created: 2025-06-24 07:00

Line	Count	Source (jump to first uncovered line)
1		// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
2		//
3		// Licensed under the Apache License, Version 2.0 (the "License");
4		// you may not use this file except in compliance with the License.
5		// You may obtain a copy of the License at
6		//
7		// https://www.apache.org/licenses/LICENSE-2.0
8		//
9		// Unless required by applicable law or agreed to in writing, software
10		// distributed under the License is distributed on an "AS IS" BASIS,
11		// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12		// See the License for the specific language governing permissions and
13		// limitations under the License.
14
15		#include <openssl/evp.h>
16
17		#include <assert.h>
18		#include <string.h>
19
20		#include <openssl/err.h>
21		#include <openssl/mem.h>
22		#include <openssl/nid.h>
23
24		#include "../internal.h"
25		#include "internal.h"
26
27
28		// Node depends on \|EVP_R_NOT_XOF_OR_INVALID_LENGTH\|.
29		//
30		// TODO(davidben): Fix Node to not touch the error queue itself and remove this.
31		OPENSSL_DECLARE_ERROR_REASON(EVP, NOT_XOF_OR_INVALID_LENGTH)
32
33		// The HPKE module uses the EVP error namespace, but it lives in another
34		// directory.
35		OPENSSL_DECLARE_ERROR_REASON(EVP, EMPTY_PSK)
36
37	259k	EVP_PKEY *EVP_PKEY_new(void) {
38	259k	EVP_PKEY *ret =
39	259k	reinterpret_cast<EVP_PKEY *>(OPENSSL_zalloc(sizeof(EVP_PKEY)));
40	259k	if (ret == NULL) {
41	0	return NULL;
42	0	}
43
44	259k	ret->type = EVP_PKEY_NONE;
45	259k	ret->references = 1;
46	259k	return ret;
47	259k	}
48
49	684k	static void free_it(EVP_PKEY *pkey) {
50	684k	if (pkey->ameth && pkey->ameth->pkey_free) {
51	425k	pkey->ameth->pkey_free(pkey);
52	425k	pkey->pkey = NULL;
53	425k	pkey->type = EVP_PKEY_NONE;
54	425k	}
55	684k	}
56
57	1.24M	void EVP_PKEY_free(EVP_PKEY *pkey) {
58	1.24M	if (pkey == NULL) {
59	450k	return;
60	450k	}
61
62	795k	if (!CRYPTO_refcount_dec_and_test_zero(&pkey->references)) {
63	536k	return;
64	536k	}
65
66	259k	free_it(pkey);
67	259k	OPENSSL_free(pkey);
68	259k	}
69
70	536k	int EVP_PKEY_up_ref(EVP_PKEY *pkey) {
71	536k	CRYPTO_refcount_inc(&pkey->references);
72	536k	return 1;
73	536k	}
74
75	11.3k	int EVP_PKEY_is_opaque(const EVP_PKEY *pkey) {
76	11.3k	if (pkey->ameth && pkey->ameth->pkey_opaque) {
77	11.3k	return pkey->ameth->pkey_opaque(pkey);
78	11.3k	}
79	0	return 0;
80	11.3k	}
81
82	11.3k	int EVP_PKEY_cmp(const EVP_PKEY a, const EVP_PKEY b) {
83	11.3k	if (a->type != b->type) {
84	0	return -1;
85	0	}
86
87	11.3k	if (a->ameth) {
88	11.3k	int ret;
89		// Compare parameters if the algorithm has them
90	11.3k	if (a->ameth->param_cmp) {
91	0	ret = a->ameth->param_cmp(a, b);
92	0	if (ret <= 0) {
93	0	return ret;
94	0	}
95	0	}
96
97	11.3k	if (a->ameth->pub_cmp) {
98	11.3k	return a->ameth->pub_cmp(a, b);
99	11.3k	}
100	11.3k	}
101
102	0	return -2;
103	11.3k	}
104
105	0	int EVP_PKEY_copy_parameters(EVP_PKEY to, const EVP_PKEY from) {
106	0	if (to->type == EVP_PKEY_NONE) {
107	0	evp_pkey_set_method(to, from->ameth);
108	0	} else if (to->type != from->type) {
109	0	OPENSSL_PUT_ERROR(EVP, EVP_R_DIFFERENT_KEY_TYPES);
110	0	return 0;
111	0	}
112
113	0	if (EVP_PKEY_missing_parameters(from)) {
114	0	OPENSSL_PUT_ERROR(EVP, EVP_R_MISSING_PARAMETERS);
115	0	return 0;
116	0	}
117
118		// Once set, parameters may not change.
119	0	if (!EVP_PKEY_missing_parameters(to)) {
120	0	if (EVP_PKEY_cmp_parameters(to, from) == 1) {
121	0	return 1;
122	0	}
123	0	OPENSSL_PUT_ERROR(EVP, EVP_R_DIFFERENT_PARAMETERS);
124	0	return 0;
125	0	}
126
127	0	if (from->ameth && from->ameth->param_copy) {
128	0	return from->ameth->param_copy(to, from);
129	0	}
130
131		// TODO(https://crbug.com/boringssl/536): If the algorithm takes no
132		// parameters, copying them should vacuously succeed.
133	0	return 0;
134	0	}
135
136	0	int EVP_PKEY_missing_parameters(const EVP_PKEY *pkey) {
137	0	if (pkey->ameth && pkey->ameth->param_missing) {
138	0	return pkey->ameth->param_missing(pkey);
139	0	}
140	0	return 0;
141	0	}
142
143	185k	int EVP_PKEY_size(const EVP_PKEY *pkey) {
144	185k	if (pkey && pkey->ameth && pkey->ameth->pkey_size) {
145	185k	return pkey->ameth->pkey_size(pkey);
146	185k	}
147	0	return 0;
148	185k	}
149
150	0	int EVP_PKEY_bits(const EVP_PKEY *pkey) {
151	0	if (pkey && pkey->ameth && pkey->ameth->pkey_bits) {
152	0	return pkey->ameth->pkey_bits(pkey);
153	0	}
154	0	return 0;
155	0	}
156
157	568k	int EVP_PKEY_id(const EVP_PKEY *pkey) { return pkey->type; }
158
159		// evp_pkey_asn1_find returns the ASN.1 method table for the given \|nid\|, which
160		// should be one of the \|EVP_PKEY_*\| values. It returns NULL if \|nid\| is
161		// unknown.
162	0	static const EVP_PKEY_ASN1_METHOD *evp_pkey_asn1_find(int nid) {
163	0	switch (nid) {
164	0	case EVP_PKEY_RSA:
165	0	return &rsa_asn1_meth;
166	0	case EVP_PKEY_EC:
167	0	return &ec_asn1_meth;
168	0	case EVP_PKEY_DSA:
169	0	return &dsa_asn1_meth;
170	0	case EVP_PKEY_ED25519:
171	0	return &ed25519_asn1_meth;
172	0	case EVP_PKEY_X25519:
173	0	return &x25519_asn1_meth;
174	0	default:
175	0	return NULL;
176	0	}
177	0	}
178
179	425k	void evp_pkey_set_method(EVP_PKEY pkey, const EVP_PKEY_ASN1_METHOD method) {
180	425k	free_it(pkey);
181	425k	pkey->ameth = method;
182	425k	pkey->type = pkey->ameth->pkey_id;
183	425k	}
184
185	0	int EVP_PKEY_type(int nid) {
186		// In OpenSSL, this was used to map between type aliases. BoringSSL supports
187		// no type aliases, so this function is just the identity.
188	0	return nid;
189	0	}
190
191	0	int EVP_PKEY_assign(EVP_PKEY pkey, int type, void key) {
192		// This function can only be used to assign RSA, DSA, EC, and DH keys. Other
193		// key types have internal representations which are not exposed through the
194		// public API.
195	0	switch (type) {
196	0	case EVP_PKEY_RSA:
197	0	return EVP_PKEY_assign_RSA(pkey, reinterpret_cast<RSA *>(key));
198	0	case EVP_PKEY_DSA:
199	0	return EVP_PKEY_assign_DSA(pkey, reinterpret_cast<DSA *>(key));
200	0	case EVP_PKEY_EC:
201	0	return EVP_PKEY_assign_EC_KEY(pkey, reinterpret_cast<EC_KEY *>(key));
202	0	case EVP_PKEY_DH:
203	0	return EVP_PKEY_assign_DH(pkey, reinterpret_cast<DH *>(key));
204	0	}
205
206	0	OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_ALGORITHM);
207	0	ERR_add_error_dataf("algorithm %d", type);
208	0	return 0;
209	0	}
210
211	0	int EVP_PKEY_set_type(EVP_PKEY *pkey, int type) {
212	0	if (pkey && pkey->pkey) {
213		// This isn't strictly necessary, but historically \|EVP_PKEY_set_type\| would
214		// clear \|pkey\| even if \|evp_pkey_asn1_find\| failed, so we preserve that
215		// behavior.
216	0	free_it(pkey);
217	0	}
218
219	0	const EVP_PKEY_ASN1_METHOD *ameth = evp_pkey_asn1_find(type);
220	0	if (ameth == NULL) {
221	0	OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_ALGORITHM);
222	0	ERR_add_error_dataf("algorithm %d", type);
223	0	return 0;
224	0	}
225
226	0	if (pkey) {
227	0	evp_pkey_set_method(pkey, ameth);
228	0	}
229
230	0	return 1;
231	0	}
232
233		EVP_PKEY EVP_PKEY_new_raw_private_key(int type, ENGINE unused,
234	0	const uint8_t *in, size_t len) {
235		// To avoid pulling in all key types, look for specifically the key types that
236		// support \|set_priv_raw\|.
237	0	const EVP_PKEY_ASN1_METHOD *method;
238	0	switch (type) {
239	0	case EVP_PKEY_X25519:
240	0	method = &x25519_asn1_meth;
241	0	break;
242	0	case EVP_PKEY_ED25519:
243	0	method = &ed25519_asn1_meth;
244	0	break;
245	0	default:
246	0	OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_ALGORITHM);
247	0	return nullptr;
248	0	}
249
250	0	bssl::UniquePtr<EVP_PKEY> ret(EVP_PKEY_new());
251	0	if (ret == nullptr) {
252	0	return nullptr;
253	0	}
254	0	evp_pkey_set_method(ret.get(), method);
255
256	0	if (!ret->ameth->set_priv_raw(ret.get(), in, len)) {
257	0	return nullptr;
258	0	}
259
260	0	return ret.release();
261	0	}
262
263		EVP_PKEY EVP_PKEY_new_raw_public_key(int type, ENGINE unused,
264	0	const uint8_t *in, size_t len) {
265		// To avoid pulling in all key types, look for specifically the key types that
266		// support \|set_pub_raw\|.
267	0	const EVP_PKEY_ASN1_METHOD *method;
268	0	switch (type) {
269	0	case EVP_PKEY_X25519:
270	0	method = &x25519_asn1_meth;
271	0	break;
272	0	case EVP_PKEY_ED25519:
273	0	method = &ed25519_asn1_meth;
274	0	break;
275	0	default:
276	0	OPENSSL_PUT_ERROR(EVP, EVP_R_UNSUPPORTED_ALGORITHM);
277	0	return nullptr;
278	0	}
279
280	0	bssl::UniquePtr<EVP_PKEY> ret(EVP_PKEY_new());
281	0	if (ret == nullptr) {
282	0	return nullptr;
283	0	}
284	0	evp_pkey_set_method(ret.get(), method);
285
286	0	if (!ret->ameth->set_pub_raw(ret.get(), in, len)) {
287	0	return nullptr;
288	0	}
289
290	0	return ret.release();
291	0	}
292
293		int EVP_PKEY_get_raw_private_key(const EVP_PKEY pkey, uint8_t out,
294	0	size_t *out_len) {
295	0	if (pkey->ameth->get_priv_raw == NULL) {
296	0	OPENSSL_PUT_ERROR(EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
297	0	return 0;
298	0	}
299
300	0	return pkey->ameth->get_priv_raw(pkey, out, out_len);
301	0	}
302
303		int EVP_PKEY_get_raw_public_key(const EVP_PKEY pkey, uint8_t out,
304	0	size_t *out_len) {
305	0	if (pkey->ameth->get_pub_raw == NULL) {
306	0	OPENSSL_PUT_ERROR(EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
307	0	return 0;
308	0	}
309
310	0	return pkey->ameth->get_pub_raw(pkey, out, out_len);
311	0	}
312
313	0	int EVP_PKEY_cmp_parameters(const EVP_PKEY a, const EVP_PKEY b) {
314	0	if (a->type != b->type) {
315	0	return -1;
316	0	}
317	0	if (a->ameth && a->ameth->param_cmp) {
318	0	return a->ameth->param_cmp(a, b);
319	0	}
320		// TODO(https://crbug.com/boringssl/536): If the algorithm doesn't use
321		// parameters, they should compare as vacuously equal.
322	0	return -2;
323	0	}
324
325	87.9k	int EVP_PKEY_CTX_set_signature_md(EVP_PKEY_CTX ctx, const EVP_MD md) {
326	87.9k	return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_MD, 0,
327	87.9k	(void *)md);
328	87.9k	}
329
330	0	int EVP_PKEY_CTX_get_signature_md(EVP_PKEY_CTX ctx, const EVP_MD *out_md) {
331	0	return EVP_PKEY_CTX_ctrl(ctx, -1, EVP_PKEY_OP_TYPE_SIG, EVP_PKEY_CTRL_GET_MD,
332	0	0, (void *)out_md);
333	0	}
334
335	0	void EVP_PKEY_get0(const EVP_PKEY pkey) {
336		// Node references, but never calls this function, so for now we return NULL.
337		// If other projects require complete support, call \|EVP_PKEY_get0_RSA\|, etc.,
338		// rather than reading \|pkey->pkey\| directly. This avoids problems if our
339		// internal representation does not match the type the caller expects from
340		// OpenSSL.
341	0	return NULL;
342	0	}
343
344	0	void OpenSSL_add_all_algorithms(void) {}
345
346	0	void OPENSSL_add_all_algorithms_conf(void) {}
347
348	0	void OpenSSL_add_all_ciphers(void) {}
349
350	0	void OpenSSL_add_all_digests(void) {}
351
352	0	void EVP_cleanup(void) {}
353
354		int EVP_PKEY_set1_tls_encodedpoint(EVP_PKEY pkey, const uint8_t in,
355	0	size_t len) {
356	0	if (pkey->ameth->set1_tls_encodedpoint == NULL) {
357	0	OPENSSL_PUT_ERROR(EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
358	0	return 0;
359	0	}
360
361	0	return pkey->ameth->set1_tls_encodedpoint(pkey, in, len);
362	0	}
363
364	0	size_t EVP_PKEY_get1_tls_encodedpoint(const EVP_PKEY pkey, uint8_t *out_ptr) {
365	0	if (pkey->ameth->get1_tls_encodedpoint == NULL) {
366	0	OPENSSL_PUT_ERROR(EVP, EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
367	0	return 0;
368	0	}
369
370	0	return pkey->ameth->get1_tls_encodedpoint(pkey, out_ptr);
371	0	}
372
373	0	int EVP_PKEY_base_id(const EVP_PKEY *pkey) {
374		// OpenSSL has two notions of key type because it supports multiple OIDs for
375		// the same algorithm: NID_rsa vs NID_rsaEncryption and five distinct spelling
376		// of DSA. We do not support these, so the base ID is simply the ID.
377	0	return EVP_PKEY_id(pkey);
378	0	}